diff --git a/runbot_merge/git.py b/runbot_merge/git.py
index f8bdb7f5..ead0e6f1 100644
--- a/runbot_merge/git.py
+++ b/runbot_merge/git.py
@@ -125,8 +125,6 @@ class Repo:
         repo = self.stdout().with_config(text=True, check=False)
 
         logger = _logger.getChild('rebase')
-        logger.debug("rebasing %s on %s (reset=%s, commits=%s)",
-                     self._repo, dest, len(commits))
         if not commits:
             raise MergeError("PR has no commits")
 
diff --git a/runbot_merge/models/project_freeze/__init__.py b/runbot_merge/models/project_freeze/__init__.py
index 2a0961bf..c5b3312e 100644
--- a/runbot_merge/models/project_freeze/__init__.py
+++ b/runbot_merge/models/project_freeze/__init__.py
@@ -242,6 +242,8 @@ class FreezeWizard(models.Model):
             except Exception as e:
                 raise UserError(f"Unable to fetch commits of release PR {rel.pr_id.display_name}.") from e
 
+            _logger.debug("rebasing %s on %s (commits=%s)",
+                          rel.pr_id.display_name, prev, len(commits))
             rel_heads[repo_id] = repos[repo_id].rebase(prev, commits)[0]
 
         # prep bump
@@ -260,6 +262,8 @@ class FreezeWizard(models.Model):
             except Exception as e:
                 raise UserError(f"Unable to fetch commits of bump PR {bump.pr_id.display_name}.") from e
 
+            _logger.debug("rebasing %s on %s (commits=%s)",
+                          bump.pr_id.display_name, prev, len(commits))
             bump_heads[repo_id] = repos[repo_id].rebase(prev, commits)[0]
 
         deployed = {}
diff --git a/runbot_merge/models/stagings_create.py b/runbot_merge/models/stagings_create.py
index 382fa49d..f426db7d 100644
--- a/runbot_merge/models/stagings_create.py
+++ b/runbot_merge/models/stagings_create.py
@@ -490,12 +490,17 @@ def stage_rebase_ff(pr: PullRequests, info: StagingSlice, commits: List[github.P
     msg = pr._build_merge_message(commits[-1]['commit']['message'], related_prs=related_prs)
     commits[-1]['commit']['message'] = str(msg)
     add_self_references(pr, commits[:-1])
+
+    _logger.debug("rebasing %s on %s (commits=%s)",
+                  pr.display_name, info.head, len(commits))
     head, mapping = info.repo.rebase(info.head, commits=commits)
     pr.commits_map = json.dumps({**mapping, '': head})
     return head
 
 def stage_rebase_merge(pr: PullRequests, info: StagingSlice, commits: List[github.PrCommit], related_prs: PullRequests) -> str :
     add_self_references(pr, commits)
+    _logger.debug("rebasing %s on %s (commits=%s)",
+                  pr.display_name, info.head, len(commits))
     h, mapping = info.repo.rebase(info.head, commits=commits)
     msg = pr._build_merge_message(pr, related_prs=related_prs)